Datasheet LT3650-4.1, LT3650-4.2 (Analog Devices) - 4

LT3650-4.1/LT3650-4.2
e lecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at VIN = 20V, BOOST-SW = 4V, SHDN = 2V, SENSE = BAT = VBAT(FLT), CTIMER = 0.68µF. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCHRG, VFAULT Status Low Voltage 10mA Load l 0.4 V ITIMER Charge/Discharge Current 25 µA VTIMER(DIS) Timer Disable Threshold l 0.1 0.25 V tTIMER Full Charge Cycle Timeout 3 hr Precondition Timeout 22.5 min Timer Accuracy l –10 10 % fO Operating Frequency l 0.9 1 1.1 MHz DC Duty Cycle Range Continuous Operation l 15 90 %
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings temperature range are assured by design, characterization and correlation may cause permanent damage to the device. Exposure to any Absolute with statistical process controls. The LT3650I specifications are Maximum Rating condition for extended periods may affect device guaranteed over the full –40°C to 85°C temperature range. High junction reliability and lifetime. temperatures degrade operating lifetimes.
Note 2:
The LT3650E is guaranteed to meet performance specifications
Note 3:
VIN voltages below the start threshold are only supported if from 0°C to 85°C. Specifications over the –40°C to 85°C operating (VBOOST – VSW) > 2V.
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Maximum Charge Current vs IRNG/SS Battery Float Voltage VIN Standby Mode Current Voltage, ICHG(MAX) as a Percentage vs Temperature vs Temperature of Programmed IMAX
100 100 0.1 95 80 0.05 90 (%) 85 (%) 60 0 80 CURRENT (µA) 40 ∆V BAT(FLT) I CHG(MAX) –0.05 I VIN 75 20 70 –0.1 65 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 0 0.2 0.4 0.6 0.8 1.0 1.2 TEMPERATURE (°C) TEMPERATURE (°C) V 3650 G01 RNG/SS 365042 G02 365042 G03 36504142fc 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts